What does it mean to Devote to a Guru?

In my limited understanding, I believe Guru Devotion is doing what makes our Guru happy. And since our Guru IS a representative of Kuan Yin on earth, what would make Kuan yin happy? - to be kind to everyone, to harm no one and to purify our minds from harmful thoughts.

Without these foundations, we can go to the deepest reaches of Tibet and obtain the most high, most powerful teachings the universe has ever known, still without basic qualities like Love, Compassion and Forgiveness ... no true attainments can be won.

Forgiveness and Giving is the very root of the Higher Qualities, if we cannot forgive, we would be unable to be equanimous, unable to be impartial to all and unable to truly be Kuan Yin-like i.e. to Love All Sentient Beings. Imagine... I will Love All Sentient beings except so and so.... lol ( sounds like me in a fit of anger haha)

If we are unable to Give, true compassion will never arise, for Compassion is about Giving Care, Giving Material needs, Giving protection and Giving Wisdom to the ones we Love.